Optically driven antenna

Details Optically driven antenna Optically driven antenna

2011-03-22

2011-03-22

Wimer, Michael C (Department: 2821)

Communications: radio wave antennas

Antennas

Having electric space discharge device

C343S832000

Reexamination Certificate

active

07911395

ABSTRACT:
There is provided an optically driven, transmitting and receiving antenna transformable into an electrically invisible antenna when inactive, including a light source, a semiconductor wafer illuminatable by the light source and a microwave source or sensor. The wafer has a surface for forming optically induced plasma or electron hole concentration, assuming a spatial and temporal pattern defined by a light beam impinging thereon. Upon the wafer being exposed to the light beam having a power level sufficient for creating a dense plasma or electron hole concentration in the wafer, the wafer becomes reflective to microwaves, and returns to transparency when light from the light source is turned off.

REFERENCES:
patent: 5084707 (1992-01-01), Reits
patent: 6177909 (2001-01-01), Reid et al.
patent: 2003/0160724 (2003-08-01), Alexeff et al.
patent: 3920110 (1991-02-01), None
patent: 0 442 562 (1991-08-01), None
patent: 0 524 878 (1993-01-01), None
International Search Report for PCT/IL2007/000643, Sep. 27, 2007.

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